Sclerenchyma Scle*ren"chy*ma, n. [NL., from Gr. sklhro`s hard
+ -enchyma as in parenchyma.]
1. (Bot.) Vegetable tissue composed of short cells with
thickened or hardened walls, as in nutshells and the
gritty parts of a pear. See {Sclerotic}.
[1913 Webster]

Note: By recent German writers and their English translators,
this term is used for {liber cells}. --Goodale.
[1913 Webster]